title: Clear cell variant of squamous cell carcinoma of skin: A report of a case.
abstract: Clear cell squamous cell carcinoma (SCC) is a rare variant of SCC of skin in which ultraviolet radiation has been suggested as possible etiology. This case is that of a 62-year-old male concrete block maker/bricklayer who presented with a 6 months history of a non-healing ulcer on the left side of his face. Histology showed features of malignant epithelial neoplasm composed of islands of large oval to polyhedral malignant squamous cells with eosinophilic to amphophilic cytoplasm and vesicular nuclei and there were areas showing clear cell differentiation and isolated areas of keratin pearl formation. The lesion was also negative for periodic acid schiff, mucicarmine, and alcian blue stains but was strongly positive for AE1/AE3 (immuno-stain). This case showed an aggressive and bizarre clinical presentation but more report of cases are needed to have a better characterization of the clinical presentation and prognosis of this variant of SCC.
authors.affiliation: Department of Oral Pathology, College of Medicine, University of Ibadan, Ibadan, Nigeria.
authors.forename: Ahmed Oluwatoyin
authors.initials: AO
authors.lastname: Lawal
authors.forename: Akinyele Olumuyiwa
authors.initials: AO
authors.lastname: Adisa
authors.forename: Mofoluwaso A
authors.initials: MA
authors.lastname: Olajide
authors.forename: Adeola Adenike
authors.initials: AA
authors.lastname: Olusanya
keywords: Clear cell; skin; squamous cell carcinoma